minor fix

app.py

@@ -196,7 +196,7 @@ if st.session_state.clicked:
                     st.write(f"[{i+1}] ", str(citation.page_content))
                     st.write(str(citation.metadata['source']))
                     section = ""
-                    if len(list(citation.metadata.values())) > 1 & data_source=='Blog articles':
+                    if (len(list(citation.metadata.values())) > 1) & (data_source=='Blog articles'):
                         for chapter in list(citation.metadata.values())[:-1]:
                             section += f"{chapter} "
                         st.write(f"Abschnitt: '{section}'")
@@ -224,7 +224,7 @@ if prompt := st.chat_input():
                     st.write(f"[{i+1}] ", str(citation.page_content))
                     st.write(str(citation.metadata['source']))
                     section = ""
-                    if len(list(citation.metadata.values())) > 1 & data_source=='Blog articles':
+                    if (len(list(citation.metadata.values())) > 1) & (data_source=='Blog articles'):
                         for chapter in list(citation.metadata.values())[:-1]:
                             section += f"{chapter} "
                         st.write(f"Abschnitt: '{section}'")